.page-faq {
  --faq-c1: #35F0D0;
  --faq-c2: #57DCC6;
  --faq-c3: #8FCBAE;
  --faq-c4: #D4B183;
  --faq-c5: #FF8A3D;
  --faq-surface: rgba(247, 242, 231, 0.045);
  --faq-line: rgba(143, 166, 156, 0.22);
  background: var(--ink-green);
  color: var(--paper-white);
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

.page-faq a {
  color: var(--neon);
  text-decoration-color: rgba(53, 240, 208, 0.4);
  text-underline-offset: 3px;
}

.page-faq a:hover {
  color: var(--paper-white);
}

.page-faq .faq-topline {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-faq .breadcrumb a {
  color: var(--mist);
}

.page-faq .breadcrumb a:hover {
  color: var(--neon);
}

.page-faq .crumb-list {
  color: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(22px, 4vw, 40px) 0 clamp(34px, 6vw, 68px);
  background:
    radial-gradient(130% 100% at 92% -10%, rgba(14, 34, 56, 0.95) 0%, rgba(11, 43, 38, 0) 60%),
    linear-gradient(180deg, #0B2B26 0%, #0A2420 100%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--rule-strong), transparent);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.page-faq .faq-hero-copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 5.4vw, 58px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--paper-white);
  max-width: 15ch;
}

.page-faq .faq-lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(247, 242, 231, 0.78);
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-faq .faq-hero-media {
  position: relative;
  margin: 0;
  border-radius: var(--radius-soft);
  overflow: hidden;
  border: 1px solid var(--rule);
  background: var(--night-blue);
  box-shadow: var(--island-shadow);
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-hero-media::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 20, 15, 0) 42%, rgba(7, 20, 15, 0.86) 100%);
  pointer-events: none;
}

.page-faq .faq-hero-cap {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: var(--gold);
  z-index: 1;
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-faq .faq-index {
  padding: 16px 0 0;
  border-top: 1px dashed var(--rule-strong);
}

.page-faq .faq-index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index-list li {
  flex: 0 0 auto;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  font-size: 13.5px;
  color: var(--paper-white);
  text-decoration: none;
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--faq-c1);
  border-radius: 4px var(--radius-pill) var(--radius-pill) 4px;
  background: var(--faq-surface);
  white-space: nowrap;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.page-faq .faq-index-list li:nth-child(2) .faq-index-link { border-left-color: var(--faq-c2); }
.page-faq .faq-index-list li:nth-child(3) .faq-index-link { border-left-color: var(--faq-c3); }
.page-faq .faq-index-list li:nth-child(4) .faq-index-link { border-left-color: var(--faq-c4); }
.page-faq .faq-index-list li:nth-child(5) .faq-index-link { border-left-color: var(--faq-c5); }

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  background: rgba(53, 240, 208, 0.1);
  border-color: var(--neon);
  border-left-color: var(--neon);
  transform: translateX(2px);
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-index .note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.8;
  letter-spacing: 0.05em;
  color: var(--mist);
  max-width: 34ch;
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  margin-bottom: clamp(22px, 4vw, 36px);
  border: 1px solid var(--rule);
  border-radius: var(--radius-card);
  background: rgba(14, 34, 56, 0.72);
}

.page-faq .faq-filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .filter-btn {
  appearance: none;
  font: inherit;
  font-size: 13px;
  letter-spacing: 0.02em;
  padding: 8px 14px;
  color: rgba(247, 242, 231, 0.82);
  background: transparent;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: color 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.page-faq .filter-btn:hover,
.page-faq .filter-btn:focus-visible {
  color: var(--neon);
  border-color: var(--neon);
  outline: none;
}

.page-faq .filter-btn.is-active {
  background: var(--neon);
  border-color: var(--neon);
  color: var(--deep-ink);
  font-weight: 600;
}

.page-faq .filter-count {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-groups {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.page-faq .faq-group {
  --faq-accent: var(--faq-c1);
  position: relative;
  padding-top: 14px;
  border-top: 1px solid var(--faq-line);
  scroll-margin-top: 96px;
}

.page-faq .faq-group:nth-of-type(1) { --faq-accent: var(--faq-c1); }
.page-faq .faq-group:nth-of-type(2) { --faq-accent: var(--faq-c2); }
.page-faq .faq-group:nth-of-type(3) { --faq-accent: var(--faq-c3); }
.page-faq .faq-group:nth-of-type(4) { --faq-accent: var(--faq-c4); }
.page-faq .faq-group:nth-of-type(5) { --faq-accent: var(--faq-c5); }

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 56px;
  height: 3px;
  background: var(--faq-accent);
}

.page-faq .faq-group-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 6px;
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--faq-accent);
  padding-top: 4px;
}

.page-faq .faq-group-title {
  margin: 0;
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper-white);
}

.page-faq .faq-group-note {
  margin: 5px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-group-body {
  margin-top: 10px;
}

.page-faq .faq-item {
  border-top: 1px dashed rgba(201, 168, 106, 0.34);
}

.page-faq .faq-item:first-child {
  border-top: 0;
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--paper-white);
  transition: color 0.16s ease;
}

.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item summary:hover,
.page-faq .faq-item summary:focus-visible {
  color: var(--neon);
  outline: none;
}

.page-faq .faq-toggle {
  position: relative;
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border: 1px solid var(--rule-strong);
  border-radius: 50%;
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-faq .faq-toggle::before,
.page-faq .faq-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--faq-accent);
  transform: translate(-50%, -50%);
}

.page-faq .faq-toggle::before {
  width: 9px;
  height: 1.5px;
}

.page-faq .faq-toggle::after {
  width: 1.5px;
  height: 9px;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.page-faq .faq-item[open] .faq-toggle {
  border-color: var(--faq-accent);
  background: rgba(53, 240, 208, 0.08);
}

.page-faq .faq-item[open] .faq-toggle::after {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-item[open] summary {
  color: var(--faq-accent);
}

.page-faq .faq-a {
  padding: 0 30px 18px 0;
  border-left: 2px solid var(--faq-accent);
  margin-left: 1px;
  padding-left: 14px;
}

.page-faq .faq-a p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(247, 242, 231, 0.78);
}

/* ---------- 支持窄带 ---------- */
.page-faq .faq-support-section {
  padding-bottom: clamp(40px, 6vw, 72px);
}

.page-faq .faq-support {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-soft);
  border: 1px solid var(--rule);
  background: var(--night-blue);
}

.page-faq .faq-support-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
}

.page-faq .faq-support::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(7, 20, 15, 0.95) 12%, rgba(14, 34, 56, 0.82) 58%, rgba(11, 43, 38, 0.6) 100%);
}

.page-faq .faq-support-inner {
  position: relative;
  z-index: 1;
  padding: clamp(26px, 5vw, 52px);
  max-width: 640px;
}

.page-faq .faq-support-inner h2 {
  margin: 12px 0 0;
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper-white);
}

.page-faq .faq-support-text {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(247, 242, 231, 0.8);
}

.page-faq .faq-support-list {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-support-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  align-items: baseline;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(201, 168, 106, 0.32);
}

.page-faq .faq-support-label {
  flex: 0 0 auto;
  min-width: 68px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-faq .faq-support-value {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.01em;
  color: var(--paper-white);
  word-break: break-word;
}

.page-faq .faq-support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* ---------- 入场 ---------- */
.page-faq [data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.32s ease, transform 0.32s ease;
}

.page-faq [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-faq .faq-index-link,
  .page-faq .filter-btn,
  .page-faq .faq-toggle::after {
    transition: none;
  }
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(26px, 4vw, 48px);
  }

  .page-faq .faq-hero-media img {
    aspect-ratio: 4 / 3;
  }

  .page-faq .faq-lead {
    font-size: 16px;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(190px, 240px) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
    padding-top: 18px;
  }

  .page-faq .faq-index-list {
    flex-direction: column;
    overflow: visible;
    gap: 6px;
    padding-bottom: 0;
  }

  .page-faq .faq-index-link {
    border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
    padding: 10px 14px 10px 16px;
  }

  .page-faq .faq-group-title {
    font-size: 24px;
  }

  .page-faq .faq-item summary {
    font-size: 16px;
    padding: 17px 2px;
  }

  .page-faq .faq-a p {
    font-size: 15px;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-hero-media img {
    aspect-ratio: 3 / 2;
  }
}
<<<END>>>